Discovery and Implications
Fossilized clawed footprints found in , dating back 356 million years, suggest amniotes, including reptiles, originated 35-40 million years earlier than previously thought. This challenges the timeline of tetrapod evolution.
The discovery indicates a more complex and earlier diversification of tetrapods than believed, with amniotes being the first to adapt to terrestrial life, including reproducing on land.
Research and Analysis
The footprints, resembling those of modern reptiles, were found in Victoria, Australia, part of the ancient supercontinent . This region may hold more clues to the evolution of amniotes and reptiles.
Researchers used digital models and detailed analyses to study the footprints, revealing behaviors and lifestyles of early tetrapods, marking a significant advancement in understanding the fish-tetrapod transition.